Effect of SiC whiskers on the oxidation protective properties of SiC coatings for carbon/carbon composites

作     者：SHI Xiaohong LI Hejun FU Qiangang LI Kezhi ZHANG Xiulian 

作者机构：The Key Laboratory of Superhigh Temperature Composites Northwestern Polytechnical University Xi＇an 710072 China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2006年第25卷第1期

页      面：58-62页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：This work was financially supported by the National Natural Science Foundation of China for Distinguished Young Scholars (No. 50225210) the Foundation of Aeronautic Science of China (No. 03H53044) 

主　　题：carbon/carbon composites SiC coating oxidation protection SiC whiskers 

摘      要：In order to effectively employ the unique high temperature mechanical properties of carbon/carbon composite substrates, SiC coatings reinforced by SiC whiskers were prepared by pack cementation method. The effect of SiC whiskers on the oxidation resistance properties of the single-layer coating and double-layer coating was investigated. SiC whiskers in the single-layer SiC coating have little effect on the anti-oxidation property but obviously improve the thermal shock property. The double-layer coating with inner-layer reinforced coating exhibits more perfect anti-oxidation ability than the double-layer coating with SiC inner-layer coating.